Re: Highly dynamic forms
[EMAIL PROTECTED] a écrit : http://wiki.apache.org/struts/StrutsCatalogLazyList Look at the section: Hand Cranking lazy List in the ActionForm. This is possible with the version you are currently using. Actually, the LazyValidatorForm class only exists since struts 1.2.6, that is why I was asking for a solution under Struts 1.2.4. Moreover, the use I have of LazyList is so small that I don't think that upgrading my version of commons-collection just for this one piece of code is relevant... I have my own LazyList implementation, which is doing what I am expecting of it. When we need a more complete/complex use of lazy objects, I'll upgrade. :-) That doesn't solve my problem, though. I do have radio buttons working from a lazy list, something like [ [value, [radio1,radio2,radio3]], [value, [radio1,radio2]] ] In the end then, I manage to get the attribute value from a radio input, but when I try with checkboxes, I fail to retrieve the String[] object... Well, I'll manage, eventually. -- Stéphane Zuckerman - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Highly dynamic forms
The section I was refering you to is the Hand Cranking the lazy List in the Action Form. This is a small section squeezed in between lazy list information. This does not require any other class but the ActionForm. All that is needed is to add code to grow the list and to get the proper objects back. - Glenn Stéphane Zuckerman [EMAIL PROTECTED] 08/06/2005 12:09 PM Please respond to Struts Users Mailing List user@struts.apache.org To Struts Users Mailing List user@struts.apache.org cc Subject Re: Highly dynamic forms [EMAIL PROTECTED] a écrit : http://wiki.apache.org/struts/StrutsCatalogLazyList Look at the section: Hand Cranking lazy List in the ActionForm. This is possible with the version you are currently using. Actually, the LazyValidatorForm class only exists since struts 1.2.6, that is why I was asking for a solution under Struts 1.2.4. Moreover, the use I have of LazyList is so small that I don't think that upgrading my version of commons-collection just for this one piece of code is relevant... I have my own LazyList implementation, which is doing what I am expecting of it. When we need a more complete/complex use of lazy objects, I'll upgrade. :-) That doesn't solve my problem, though. I do have radio buttons working from a lazy list, something like [ [value, [radio1,radio2,radio3]], [value, [radio1,radio2]] ] In the end then, I manage to get the attribute value from a radio input, but when I try with checkboxes, I fail to retrieve the String[] object... Well, I'll manage, eventually. -- Stéphane Zuckerman - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Highly dynamic forms
Stephane
Did you look at LazyList?
http://wiki.apache.org/struts/StrutsCatalogLazyList
Martin-
- Original Message -
From: Stéphane Zuckerman [EMAIL PROTECTED]
To: Struts Users Mailing List user@struts.apache.org
Sent: Tuesday, June 07, 2005 9:53 AM
Subject: Highly dynamic forms
Hello,
Here's the question for the short version (below you'll find some
lengthier explanations ...) :
I'd like to render a list of groups of radio buttons. Said list has a
variable length. So my data structure looks like :
[ [radio1,radio2,radio3], [radio1,radio2,radio3,radio4], ...]
I am currently using Struts 1.2.4. Is there a way of rendering these
groups of radio buttons without upgrading my version of Struts ?
For the detailed explanation :
I'm trying to render a form with fields which aren't defined by advance.
More precisely, I have a List (an ArrayList) of custom objects, which are
described like this :
public class MyField {
private String type, group;
private Object data;
// then the accessors follow ...
}
The type attribute contains which kind of field is to be rendered
(radio, text, checkbox, etc.). The group attribute enables me to know
which information is answered. For example :
I have two objects that are to be filled by the user, a text field, and a
radio field. So my list of MyField objects will look something like :
[ {radio, g1, (ArrayList object)}, {text, , (String object)} ]
Now, what I need is to not only render the radio buttons part (which I
eventually managed), but also to get a way to have the submission succeed
! :-)
Here is a very small example of JSP code :
html:form action=/indices
logic:iterate id=liste name=indicesForm property=liste
indexId=i
logic:iterate id=item name=liste indexId=j
html:radio property=liste[${i}] value=${item.value}/
${item.label}br/
/logic:iterate
/logic:iterate
html:submit/
/html:form
I voluntarily didn't use indexed properties, since I have to play with
inner and outer loops' indexes. Although the form is rendered the right
way, I can't submit info with it, I get an error that says :
java.lang.NullPointerException: No indexed value for 'liste[2]'
Since I use a List object, I suppose this isn't very surprising after all.
But then, what's the best way of doing that kind of stuff ?
--
Stéphane Zuckerman
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Re: Highly dynamic forms
Martin Gainty a écrit : Stephane Did you look at LazyList? http://wiki.apache.org/struts/StrutsCatalogLazyList I did, and that's why I asked if there was a solution without using a version of struts 1.2.4 . :-) I don't think my colleagues would like it if I were to change the version of the libraries we have been using for months now. Of course, if there is no other easy way, I'll update the libs, and that'll be it. Here's the question for the short version (below you'll find some lengthier explanations ...) : I'd like to render a list of groups of radio buttons. Said list has a variable length. So my data structure looks like : [ [radio1,radio2,radio3], [radio1,radio2,radio3,radio4], ...] I am currently using Struts 1.2.4. Is there a way of rendering these groups of radio buttons without upgrading my version of Struts ? -- Stéphane Zuckerman - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Highly dynamic forms
http://wiki.apache.org/struts/StrutsCatalogLazyList Look at the section: Hand Cranking lazy List in the ActionForm. This is possible with the version you are currently using. HTH, - Glenn Stéphane Zuckerman [EMAIL PROTECTED] 07/06/2005 12:28 PM Please respond to Struts Users Mailing List user@struts.apache.org To Struts Users Mailing List user@struts.apache.org cc Subject Re: Highly dynamic forms Martin Gainty a écrit : Stephane Did you look at LazyList? http://wiki.apache.org/struts/StrutsCatalogLazyList I did, and that's why I asked if there was a solution without using a version of struts 1.2.4 . :-) I don't think my colleagues would like it if I were to change the version of the libraries we have been using for months now. Of course, if there is no other easy way, I'll update the libs, and that'll be it. Here's the question for the short version (below you'll find some lengthier explanations ...) : I'd like to render a list of groups of radio buttons. Said list has a variable length. So my data structure looks like : [ [radio1,radio2,radio3], [radio1,radio2,radio3,radio4], ...] I am currently using Struts 1.2.4. Is there a way of rendering these groups of radio buttons without upgrading my version of Struts ? -- Stéphane Zuckerman - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
